Key indicator and critical condition for the water resource carrying capacity in the Yangtze River Estuary
XU Zhi1,2, MA Jing2, WANG Hao1,2, ZHAO Jianshi1, HU Yajie2, YANG Guiyu2
1. Department of Hydraulic Engineering, Tsinghua University, Beijing 100084, China; 2. China Institute of Water Resources and Hydropower Research, Beijing 100038, China
Abstract：Water resource issues are complicated in China due to the vast territory, great differences in regional meteorological and hydrological conditions, and the uneven socio-economic development. Therefore, water resource carrying capacity issues and constraints need to be identified for the various hydrological zones. Such studies will need an indicator with a clear physical meaning and its corresponding critical condition that reflects the hydrological mechanism to ensure reliable and acceptable water resource carrying capacities around the country. This paper uses the Yangtze River Estuary as an example for a mechanistic analysis of regional water issues to identify the constraints on the water resource carrying capacity. The runoff to the sea is used as a controllable hydrological indicator with the hydrodynamic model using a salinity limit to determine the critical point where the runoff to the sea can resist sea water intrusion for the Estuary. This method can also be applied to other hydrological regions.
徐志, 马静, 王浩, 赵建世, 胡雅杰, 杨贵羽. 长江口影响水资源承载力关键指标与临界条件[J]. 清华大学学报（自然科学版）, 2019, 59(5): 364-372.
XU Zhi, MA Jing, WANG Hao, ZHAO Jianshi, HU Yajie, YANG Guiyu. Key indicator and critical condition for the water resource carrying capacity in the Yangtze River Estuary. Journal of Tsinghua University(Science and Technology), 2019, 59(5): 364-372.
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